Gabrielle Marcellus has gone viral after her pronunciation of Greggs causes commotion on social media – the American woman is hilariously unaware of her unique utterance of the name of the well-loved bakeryGabrielle Marcellus has gone viral after her pronunciation of Greggs causes commotion on social media – the American woman is hilariously unaware of her unique utterance of the name of the well-loved bakery